This compound is primarily utilized in the field of coordination chemistry, where it acts as a ligand to form stable complexes with various metal ions. Its phosphonic acid group and pyridine moiety make it particularly effective in binding to metals, which is useful in catalytic processes and material synthesis. Additionally, it is employed in the development of metal-organic frameworks (MOFs), which have applications in gas storage, separation technologies, and catalysis. Its ability to chelate metals also makes it valuable in medical research, particularly in designing metal-based drugs or imaging agents. Furthermore, it finds use in surface modification processes, where it can improve the adhesion or functionality of materials in industrial applications.